SummaryCrisis resolution and home treatment teams have been introduced throughout England as part of a transformation of the community mental healthcare system. They aim to assess all patients being considered for acute hospital admission, to offer intensive home treatment rather than hospital admission if feasible, and to facilitate early discharge from hospital. Key features include 24-hour availability and intensive contact in the community, with visits twice daily if needed. This article describes the main characteristics and core interventions of these teams, and reviews the impact of their nationwide introduction. The model has evolved as a pragmatic response to difficulties in the acute care system, and its adaptation continues. Key challenges include achieving close integration with the rest of the mental health system and delivering continuity of care and effective therapeutic relationships despite the involvement of multiple workers in each crisis.